This one is just about done, but not quite yet. I am very pleased with the composition and most of the texturing. For now, I need to step away from it for a bit because I can't see the forest for the trees.

I've adjusted that - it was just a reflection of the ocean floor in the low curve of that wave. I'll upload the final once I'm finished tweaking it. Thanks for the comment - I honestly appreciate all the help I can get!

I struggled with that. there are actually low dunes there, and it's not completely smooth, but because of the way the light hits the lower part, the detail doesn't show. It's obviously not a sea with enormous waves anyway, so perhaps the sand is just flat and gentle because of that. Yea! that's it!